Harry Daniels is a quality control engineer for the Specific Electric Corporation. Specific manufactures electric motors. One
Question:
a. Plot the data as a scatter diagram.
b. Fit a simple linear regression model.
c. Test for the significance of the slope coefficient.
d. Examine the residuals.
e. Develop a curvilinear model by fitting a simple linear regression model to some transformation of the independent variable.
f. Test for the significance of the slope coefficient of the transformed variable.
g. Examine the residuals.
h. Forecast the number of defectives for a batch size of 300.
i. Which of the models in parts b and e do you prefer?
j. Write Harry a memo summarizing your results.
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